Si34-603 Troubleshooting by Indication on the Remote ControllerTroubleshooting 1393.7 “AF” Indoor Unit: Drain Level above LimitRemoteControllerDisplayAFApplicableModelsFXCQ, FXSQ, FXKQ, FXMQ, FXDQMethod ofMalfunctionDetectionWater leakage is detected based on float switch ON/OFF operation while the compressor is innon-operation.MalfunctionDecisionConditionsWhen the float switch changes from ON to OFF while the compressor is in non-operation.SupposedCauses Humidifier unit (optional accessory) leaking Defect of drain pipe (upward slope, etc.) Defect of indoor unit PC boardTroubleshootingCautionBe sure to turn off power switch before connect or disconnect connector,or parts damage may be occurred.Defect of indoor unit PC board.Modify the drain piping.YESNONOField drainpiping has a defect such asupward sloping.Check if the humidifier unit isleaking.YESA humidifierunit (optional accessory)is installed on theindoor unit.(V2782)
